MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE INJECTOR NM600/610; INJECTOR AND SHEATHSET

Model Number NM-610U-0423

Device Problem Failure to Eject (4010)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 12/07/2023

Event Type  malfunction  

Manufacturer Narrative

The device was not returned to olympus for evaluation.The investigation is ongoing and follow up with the user facility is currently being performed.A supplemental report will be submitted upon completion of the investigation or if any additional information is provided by the user facility.

Event Description

The customer reported to olympus, the endotherapy was unable to inject, and the needle was not protruding from the sheath when pushed out.There were no reports of patient harm or impact associated with the reported event.

Manufacturer Narrative

This report is being supplemented to provide the legal manufacturer's final investigation and further information that was provided by the customer.According to the customer, the issue was observed during a therapeutic colonoscopy procedure.There was a 5-minute procedural delay, the patient was not under general anesthetic, and no patient impact was reported.The procedure was completed using a similar device.Additionally, the following correction was made: (h8) selection changed to initial use, reuse was inadvertently selected.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It was noted from the lot code provided that the device was manufactured in march of 2023.Based on the results of the investigation and the information provided, the reported issue could not be confirmed, and root cause could not be determined.However, it is unlikely a unit with defective needle is shipped as the nm-401l series undergo 100% inspection for appearance, needle operation and injection.It is possible that the resistance was increased between the outer tube and the needle tube due to buckling of the tube causing the reported event.A bending force may have been applied to the tube when the device was inserted into the endoscope, removed from the sterile package, or during pre-inspection.Friction between the outer tube and the needle may have increased due to the needle being extended/retracted while the tube was coiled in inspection of operation, the slider being abruptly pushed, the kink of the tube, due to angle of the distal end of the endoscope.The event can be detected/prevented by following the instructions for use: the single use injector nm600/610 instruction manual contains the following.Warning: before use, prepare and inspect the instrument as instructed below.Should the any irregularity be observed, do not use the instrument; use a spare instead.Damage or irregularity may compromise patient or user safety, for example: posing an infection-control risk, causing tissue irritation, perforation, bleeding or mucous membrane damage, and may result in more severe equipment damage.Warning: before use, confirm that the needle and the insertion portion are not damaged.If any abnormalities such as significant deformations or excessive bends are found, do not use the instrument.Otherwise, it may cause perforation, bleeding, mucous membrane damage.Warning: confirm that the needle extends in the endoscopic image are normal.If any abnormalities are found, do not use the instrument.Otherwise, it may cause perforation, bleeding or mucous membrane damage.Warning: do not push the slider abruptly, otherwise the needle will be rapidly extended from the distal end of the tube.This could result in patient injury, such as perforation, bleeding or mucous membrane damage.It could also damage the instrument.Caution: straighten out the instrument before inspecting it.The instrument can be damaged if it is coiled while the handle is operated.Caution: do not coil the insertion portion with a diameter of less than 15 cm.This could damage the insertion portion.Caution: when inserting the instrument into the endoscope, retract the needle into the tube, hold the instrument close to the biopsy valve, and keep it as straight as possible relative to the biopsy valve.Otherwise, the instrument could be damaged.Caution: stop using the instrument if the insertion portion bends excessively during use.This could result in malfunction, such as failing to extend the needle or inject a fluid.Olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE INJECTOR NM600/610
• Type of Device: INJECTOR AND SHEATHSET
• Manufacturer (Section D): AOMORI OLYMPUS CO., LTD.; 2-248-1 okkonoki; kuroishi-shi, aomori 036-0 357; JA 036-0357
• Manufacturer (Section G): AOMORI OLYMPUS CO., LTD.; 2-248-1 okkonoki; kuroishi-shi, aomori
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 18445275
• MDR Text Key: 332620427
• Report Number: 9614641-2024-00019
• Device Sequence Number: 1
• Product Code: FBK
• UDI-Device Identifier: 04953170377952
• UDI-Public: 04953170377952
• Combination Product (y/n): N
• Reporter Country Code: CA
• PMA/PMN Number: K153625
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,User Facility
• Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date: 01/26/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 01/04/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: NM-610U-0423
• Device Lot Number: 23V3017
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: No
• Date Manufacturer Received: 01/18/2024
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1